FI-MainGroup/Facet-Choice

  • B04C1/00
  • Apparatus in which the main direction of flow follows a flat spiral HB CC 4D053
  • B04C3/00
  • Apparatus in which the axial direction of the vortex remains unchanged HB CC 4D053
  • B04C5/00
  • Apparatus in which the axial direction of the vortex is reversed HB CC 4D053
  • B04C7/00
  • Apparatus not provided for in group B04C 1/00, B04C 3/00 or B04C 5/00; Multiple arrangements not provided for in one of the groups B04C 1/00, B04C 3/00, or B04C 5/00; Combinations of apparatus covered by two or more of the groups B04C 1/00, B04C 3/00, or B04C 5/00 HB CC 4D053
  • B04C9/00
  • Combinations with other devices, e.g. fans (with filters for separating particles from gases or vapourB01D 50/00; with dry electrostatic precipitation for separating particles from gases or vapour B03C 3/15) HB CC 4D053
  • B04C11/00
  • Accessories, e.g. safety or control devices, not otherwise provided for HB CC 4D053
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